In the middle of winter my cesspool fell so they have to rip up a good
portion of my lawn to close the old cesspools and put new ones in.

Now Im faced with some lawn decisions.. rip the rest of the lawn out
and Sod? or re-Seed the entire lawn?? The front of my house (lawn area
is about 4500 SQ) so the cost of getting the Sod would be 3K +, not
including prep work, labor, etc...

1. I wanted to HydroMulch the entire area but cant find a contractor in
my area (LI NY)
2. Can I top soil the entire lawn and plant seeds without tilling it? I
dont want to mess up my ingroud sprinklers.

Is it possible to buy the HydroSeeding/HydroMulch and do it myself?